n = int(input())
if n <= 599:
    print(8)
elif 600 <= n <= 799:
    print(7)
elif 800 <= n <= 999:
    print(6)
elif 1000 <= n <= 1199:
    print(5)
elif 1200 <= n <= 1399:
    print(4)
elif 1400 <= n <= 1599:
    print(3)
elif 1600 <= n <= 1799:
    print(2)
elif 1800 <= n <= 1999:
    print(1) n = int(input()) n int(input()) int input() input if n <= 599:
    print(8)
elif 600 <= n <= 799:
    print(7)
elif 800 <= n <= 999:
    print(6)
elif 1000 <= n <= 1199:
    print(5)
elif 1200 <= n <= 1399:
    print(4)
elif 1400 <= n <= 1599:
    print(3)
elif 1600 <= n <= 1799:
    print(2)
elif 1800 <= n <= 1999:
    print(1) n <= 599 n 599 print(8) print 8 elif 600 <= n <= 799:
    print(7) 600 <= n <= 799 600 <= n 600 n 799 print(7) print 7 elif 800 <= n <= 999:
    print(6) 800 <= n <= 999 800 <= n 800 n 999 print(6) print 6 elif 1000 <= n <= 1199:
    print(5) 1000 <= n <= 1199 1000 <= n 1000 n 1199 print(5) print 5 elif 1200 <= n <= 1399:
    print(4) 1200 <= n <= 1399 1200 <= n 1200 n 1399 print(4) print 4 elif 1400 <= n <= 1599:
    print(3) 1400 <= n <= 1599 1400 <= n 1400 n 1599 print(3) print 3 elif 1600 <= n <= 1799:
    print(2) 1600 <= n <= 1799 1600 <= n 1600 n 1799 print(2) print 2 elif 1800 <= n <= 1999:
    print(1) 1800 <= n <= 1999 1800 <= n 1800 n 1999 print(1) print 1 n = int(input()) int(input()) n
n = int(input())
if n <= 599:
    print(8)
elif 600 <= n <= 799:
    print(7)
elif 800 <= n <= 999:
    print(6)
elif 1000 <= n <= 1199:
    print(5)
elif 1200 <= n <= 1399:
    print(4)
elif 1400 <= n <= 1599:
    print(3)
elif 1600 <= n <= 1799:
    print(2)
elif 1800 <= n <= 1999:
    print(1)